Question:
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A : Electromagnets are made of soft iron.
Reason R : Soft iron has high permeability and low retentivity.
In the light of above, statements, choose the most appropriate answer from the options given below.
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A : Electromagnets are made of soft iron.
Reason R : Soft iron has high permeability and low retentivity.
In the light of above, statements, choose the most appropriate answer from the options given below.
Assertion A : Electromagnets are made of soft iron.
Reason R : Soft iron has high permeability and low retentivity.
In the light of above, statements, choose the most appropriate answer from the options given below.
Updated On: Nov 2, 2026
- A is not correct but R is correct
- Both A and R are correct and R is the correct explanation of A
- A is correct but R is not correct
- Both A and R are correct but R is NOT the correct explanation of A
Show Solution
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The Correct Option is B
Solution and Explanation
Assertion A: electromagnets are indeed made of soft iron - true.
Reason R: soft iron has high magnetic permeability (it becomes strongly magnetised by a small current) and low retentivity (it retains very little magnetism after the current is switched off) - true.
These are exactly the properties required of an electromagnet: strong magnetisation while the current flows and easy demagnetisation when it stops. Hence R explains A.
Answer: (2) Both A and R are correct and R is the correct explanation of A
Reason R: soft iron has high magnetic permeability (it becomes strongly magnetised by a small current) and low retentivity (it retains very little magnetism after the current is switched off) - true.
These are exactly the properties required of an electromagnet: strong magnetisation while the current flows and easy demagnetisation when it stops. Hence R explains A.
Answer: (2) Both A and R are correct and R is the correct explanation of A
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